[dpdk-dev] [PATCH v6 18/25] lib/librte_vhost: add debug print
Huawei Xie
huawei.xie at intel.com
Wed Oct 8 20:54:52 CEST 2014
define PRINT_PACKET and LOG_DEBUG macro
Signed-off-by: Huawei Xie <huawei.xie at intel.com>
---
lib/librte_vhost/vhost-net-cdev.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/lib/librte_vhost/vhost-net-cdev.h b/lib/librte_vhost/vhost-net-cdev.h
index fa67caf..6885bbf 100644
--- a/lib/librte_vhost/vhost-net-cdev.h
+++ b/lib/librte_vhost/vhost-net-cdev.h
@@ -40,6 +40,37 @@ struct vhost_memory;
struct vhost_vring_state;
struct vhost_vring_addr;
struct vhost_vring_file;
+/* Macros for printing using RTE_LOG */
+#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
+#define RTE_LOGTYPE_VHOST_DATA RTE_LOGTYPE_USER1
+
+#ifdef RTE_LIBRTE_VHOST_DEBUG
+#define VHOST_MAX_PRINT_BUFF 6072
+#define LOG_LEVEL RTE_LOG_DEBUG
+#define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args)
+#define PRINT_PACKET(device, addr, size, header) do { \
+ char *pkt_addr = (char *)(addr); \
+ unsigned int index; \
+ char packet[VHOST_MAX_PRINT_BUFF]; \
+ \
+ if ((header)) \
+ snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%"PRIu64") Header size %d: ", (device->device_fh), (size)); \
+ else \
+ snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%"PRIu64") Packet size %d: ", (device->device_fh), (size)); \
+ for (index = 0; index < (size); index++) { \
+ snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), \
+ "%02hhx ", pkt_addr[index]); \
+ } \
+ snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), "\n"); \
+ \
+ LOG_DEBUG(VHOST_DATA, "%s", packet); \
+} while (0)
+#else
+#define LOG_LEVEL RTE_LOG_INFO
+#define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
+#define PRINT_PACKET(device, addr, size, header) do {} while (0)
+#endif
+
/*
* Structure used to identify device context.
--
1.8.1.4
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